# Distance from Seattle (SEA) to Shonai (SYO)

> 7,460 km · estimated flight time 10h · Long-haul route.

## Summary

- **Distance**: 7,460 km / 4,635 mi / 4,028 nm
- **Estimated flight time**: 10h
- **Heading**: 303° (west northwest)
- **Return heading**: 47° (northeast)
- **Classification**: Long-haul
- **Type**: International (United States) → Japan
- **Intercontinental**: North America → Asia
- **Time difference**: +16h (When it's 06:18 in Seattle, it's 22:18 in Shonai)
- **Elevation difference**: 346 ft (SYO is lower than SEA)

## Airports

### [Seattle-Tacoma International Airport (SEA)](https://www.flightduration.online/airport/sea-seattle-seattle-tacoma-international-airport/1ef266df-37e8-64a2-a4f1-06bb2780ed98)

- City: Seattle, United States
- ICAO: KSEA
- Timezone: America/Los_Angeles
- Coordinates: 47.450000, -122.310000
- Elevation: 432 ft

### [Shonai Airport (SYO)](https://www.flightduration.online/airport/syo-shonai-shonai-airport/1ef266df-8ca9-66f8-8b2b-06bb2780ed98)

- City: Shonai, Japan
- ICAO: RJSY
- Timezone: Asia/Tokyo
- Coordinates: 38.810000, 139.790000
- Elevation: 86 ft

## Route notes

This is a long-haul route typically operated by wide-body aircraft such as the Boeing 777 or Airbus A350. Full meal service, in-flight entertainment, and comfort amenities are standard.

Time-zone information: When it's 06:18 in Seattle, it's 22:18 in Shonai.
With a 16-hour time difference, expect significant jet lag.

## Related

- [Seattle-Tacoma International Airport (SEA)](https://www.flightduration.online/airport/sea-seattle-seattle-tacoma-international-airport/1ef266df-37e8-64a2-a4f1-06bb2780ed98)
- [Shonai Airport (SYO)](https://www.flightduration.online/airport/syo-shonai-shonai-airport/1ef266df-8ca9-66f8-8b2b-06bb2780ed98)
- [Flight duration calculator](/#calculator)